1.

Which of the following hydrated chlorides can not be converted into anhydrous chloride only by heating?

Answer»

`MgCl_(2).6H_(2)O`
`AlCl_(3).6H_(2)O`
`SnCl_(2).2H_(2)O`
All of these

Solution :`MgCl_(2).6H_(2)O,AlCl_(3).6H_(2)O" and "SnCl_(2).2H_(2)O` can not be converted into anhydrous chloride only by heating. Because `Mg^(2+), Al^(3+),Sn^(2+)` ions have more POLARIZATION power.
`MgCl_(2).6H_(2)OrarrMgO+2HCl+5H_(2)`
`2AlCl_(3).6H_(2)OrarrAl_(2)O_(3)+6HCl+9H_(2)O`
`SnCl_(2).2H_(2)OrarrSnO+2HCl+H_(2)O`


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